Lunar Eclipse

This is a very beautiful video of the recent winter solstice lunar eclipse.

The next total lunar eclipse won't occur until April 2014, so if you're interested in seeing the moon engulfed in a light orange to blood red hue, set your alarm and get out there before 9:05 a.m. EST (6:05 a.m. PST, 1405 GMT). I'm planning on taking some High Definition time ...more

Get ready to look up in the night sky very soon, because you're in for a real treat. There will be a total lunar eclipse on the night of Monday, April 14th, and folks living in the United States, Canada, and parts of Central and South America will be able to see the moon turn ...more

I woke up at 4:00 am this morning in order to take some video of the last total lunar eclipse visible from North America till 2014. The eclipse was beautiful. It was amazing to watch the shadow of our planet creep slowly across our nearest neighbor. Once the shadow was blockin ...more

Umbra, penumbra. Not exactly abracadabra, but if you've taken an astronomy class, you know exactly what the umbra and penumbra are. And any Earthling would agree that the umbra is the best place to be during a solar or lunar eclipse. When the Sun, Earth and Moon are precisel ...more

Astronomy World will be posting a weekly blog post that informs fellow observers upcoming interesting events in the sky. These will include: Moon phases—It can be fun observing different phases of the moon (how much of the moon is dark). It is also fun observing the dark side ...more

Measuring the distance from the Earth to the moon doesn't require NASA equipment. The ancient Greeks did it, which means 2,000 years later, you can do it, too. It works something like this: "Many people have held up a round object and let it block the Sun. Most of the time, ...more

WonderHowTo is made up niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. This week: A nostalgia-themed cell phone photo ...more

When's the next full moon? Every time I've looked at the moon, I've wondered if it was full. Sometimes it looked like it was, but it's really hard to tell for sure unless you know the exact date of the full moon. Seriously, there's at a couple days before and after the full m ...more

This year is a leap year, which means today is leap day! I will be explaining why this happens and some special conditions below in the AON. Plus, there is a new feature this week—elongation! Be sure to check it out below. February 29: It's leap day! February usually has 28 d ...more

Again, there are tons of events this week, and as usual, most of them are caused by Jupiter's moons. But there is some happenings with Venus, too, so don't miss out. March 21: Io occultation March 22: Io and Ganymede transits, new Moon March 23: Io eclipse, Europa occultation ...more

This week, there's a lot going on in the skies above, with at least one event per day! There's also an equinox, which only occurs about twice a year! March 14: NASA will be launching five rockets to study the jet stream on the east coast- if you live there be sure to look for ...more

AON is moving to Wednesdays! There are lots of things going on this week in the skies above, so be sure to observe. As usual, there's a lot to see around Jupiter, with its moons eclipsing and transiting. Also, a star from the Virgo constellation will be in conjunction with our ...more

There's not much going on this week in the skies above, but there are a lot of conjunctions to take a peek at! And of course, there's the comet Garradd that's still showing its tail to us down here on Earth, so make sure to catch it before it's gone. The rest that's going on t ...more

The Garradd comet has just about reached its absolute peak! By the way, I took those pictures below of the moon through my iPhone using an adapter. Pretty cool, right? Until March: The Garradd Comet is at its absolute peak! Be sure to view it before it's gone! February 14: Io ...more

The comet Garradd is almost at its peak now, plus there's plenty more events going on this week, so be sure to observe! Until March: The Garradd comet has almost reached its absolute highest magnitude! This comet is bright and easy to follow, so be sure to check it out! Febr ...more

This week's AON might be a little short, but finally, the Garradd comet's peak has come! I picked the Garradd comet to follow because it's a bright and easy-to-follow comet. Be sure to observe it! If you need help finding it, you can find more information here. Until March: T ...more

There isn't much going on this week, unless you like to observe the moons of Jupiter! January 27: Io transit January 28: Io and Ganymede occultations, Europa Transit January 29: Io transit January 30: Europa eclipse, Moon at apogee (404,324 kilometers), First quarter moon B ...more

Remember—winter is the perfect time to observe! There are a lot of events going on this week, so pull out that observing chair. Here they are: The Garradd comet is still in the sky and is approaching its peak. Here's how to observe it! January 17: The moon is at its perigee o ...more

This week's AON has lots of conjunctions—be sure to observe them! Here it is: The Garradd comet is still in the sky! Here's how to observe it! January 9th: full moon January 10th: Ganymede and Europa transits in North America January 13th: Venus-Moon conjunction January 14th: ...more

This week's AON may be a little short, but the ones to come will be packed full with information. I am really hoping for the skies to clear so I can observe soon! Through March 2012—The Garradd comet is getting brighter! It will peak in February. Here's how to observe it! Jan ...more

This week's AON is pretty short, but there are also lots of clouds because it is winter. However, that just makes the few days of open sky way more valuable! Remember, the Geminid Meteor shower is going on until the 16th. Here is my article on the shower! Also, you can obser ...more

There isn't much going on this week, but be sure to try viewing the Spica-moon conjunction. It will be hard to view with the full moon, but it will be spectacular if you can snag a peak. April 6: Spica-moon Conjunction, full moon April 7: Io transit; moon at perigee (358,313 ...more

Grab your binoculars and telescopes, because there's a lot going on in the night skies this week. The usually dim Little Dipper will appear brighter as it moves to the right of Polaris, creating a cool effect with the Big Dipper. There's also a first-quarter moon and a really ...more

There are a lot of events going on this week! As I mentioned last week, there will be new features from now on. Check them out in the info section below! Until March, 2012—The Garradd comet is becoming brighter in the sky. It peaks in Febuary! Be sure to observe it—here's how ...more

Apple software engineer Andrew Carol built a fully-functional replica of the Antikythera Mechanism, the world's oldest known scientific computer. The 2000-year-old analog device was used by the ancient Greeks to predict the year, date, and time of future solar and lunar eclips ...more

Welcome to Minecraft World! Check out our advanced tutorials and come play with us on our free server. Every once in a while you've got to challenge yourself and there's certainly no better time to do so than the week of Minecon. For this week's workshop we'll be rebuilding t ...more

WonderHowTo is made up niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. Hacking, crafting, mining & more… just another ...more